Results 21 to 30 of about 10,105,993 (275)

Restricted Likelihood Ratio Testing in Linear Mixed Models with General Error Covariance Structure [PDF]

open access: yes, 2011
We consider the problem of testing for zero variance components in linear mixed models with correlated or heteroscedastic errors. In the case of independent and identically distributed errors, a valid test exists, which is based on the exact finite ...
Sonja Greven   +5 more
core   +1 more source

Cancelable ECG Biometrics Using Compressive Sensing-Generalized Likelihood Ratio Test

open access: yesIEEE Access, 2019
Electrocardiogram (ECG) has been investigated as promising biometrics, but it cannot be canceled and re-used once compromised just like other biometrics.
Hanvit Kim, Se Young Chun
doaj   +1 more source

A method for parameter hypothesis testing in nonparametric regression with Fourier series approach

open access: yesMethodsX, 2023
Nonparametric regression model with the Fourier series approach was first introduced by Bilodeau in 1994. In the later years, several researchers developed a nonparametric regression model with the Fourier series approach.
Mustain Ramli   +2 more
doaj   +1 more source

Gaussian universal likelihood ratio testing

open access: yesBiometrika, 2022
Summary The classical likelihood ratio test based on the asymptotic chi-squared distribution of the log-likelihood is one of the fundamental tools of statistical inference. A recent universal likelihood ratio test approach based on sample splitting provides valid hypothesis tests and confidence sets in any setting for which we can ...
Robin Dunn   +3 more
openaire   +2 more sources

Diagnostic tests 4: likelihood ratios [PDF]

open access: yesBMJ, 2004
The properties of a diagnostic or screening test are often described using sensitivity and specificity or predictive values, as described in previous Notes.1 2 Likelihood ratios are alternative statistics for summarising diagnostic accuracy, which have several particularly powerful properties that make them more useful clinically than other statistics ...
Deeks, J, Altman, D
openaire   +3 more sources

Power Analysis for the Multivariable Logistic Model Using the Likelihood Ratio Test [PDF]

open access: yesThe Egyptian Statistical Journal, 2003
An asymptotic approach for conducting power analysis is described for the multiple logistic regression model. It is based on the likelihood ratio test statistic.
Marwa Ahmed, Magued Osman, Sanaa Ismail
doaj   +1 more source

Echo Cancellation : the generalized likelihood ratio test for double-talk vs. channel change [PDF]

open access: yes, 2009
Echo cancellers are required in both electrical (impedance mismatch) and acoustic (speaker-microphone coupling) applications. One of the main design problems is the control logic for adaptation.
Bermudez, José Carlos Moreira   +2 more
core   +1 more source

Effective ellipse detector with polygonal curve and likelihood ratio test

open access: yesIET Computer Vision, 2015
A robust ellipse detector is proposed. The detector preprocesses the edge map by removing all the isolated points and conjunction points, and exploits polygonal curve to extract the elliptical arcs.
Tingting Lu   +3 more
doaj   +1 more source

The Likelihood Ratio Test of Common Factors under Non-Ideal Conditions [PDF]

open access: yesInvestigaciones Regionales - Journal of Regional Research, 2011
The Spatial Durbin model occupies an interesting position in SpatialEconometrics. It is the reduced form of a model with cross-sectional dependencein the errors and it may be used as the nesting equation in a more general approachof model selection ...
Ana M. Angulo, Jesús Mur
doaj   +2 more sources

Generalized Correlation Coefficient Based on Log Likelihood Ratio Test Statistic

open access: yesMATEC Web of Conferences, 2016
In this paper, I point out that both Joe’s and Ding’s strength statistics can only be used for testing the pair-wise independence, and I propose a novel G-square based strength statistic, called Liu’s generalized correlation coefficient, it can be used ...
Liu Hsiang-Chuan
doaj   +1 more source

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